package Demo;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class Game {
    private static final String[] suit = {"♥","♦","♣","♠"};

    public List<Poker> buyPoker(){
        ArrayList<Poker> pokers = new ArrayList<>();//为什么左边用List/ArrayList
        for (int i = 0;i < 4;i++){
            for (int j = 1;j <= 13;j++){
                Poker poker = new Poker(suit[i],j);//建立了一张牌（对象）
                pokers.add(poker);//把创建好的牌放入牌组中
            }
        }
        return pokers;//获得制作好的牌组
    }

    private void swap(List<Poker> pokers,int i,int j){
        Poker tmp = pokers.get(i);
        pokers.set(i,pokers.get(j));
        pokers.set(j,tmp);
    }

    public void shuffle(List<Poker> pokers){
        for (int i = pokers.size() - 1;i > 0;i--){
            Random random = new Random();
            int index = random.nextInt(i);
            swap(pokers,i,index);
        }
    }
    public List<List<Poker>> game(List<Poker> pokers){
        List<List<Poker>> hand = new ArrayList<>();
        List<Poker> hand1 = new ArrayList<>();
        List<Poker> hand2 = new ArrayList<>();
        List<Poker> hand3 = new ArrayList<>();
        hand.add(hand1);
        hand.add(hand2);
        hand.add(hand3);
        for (int i = 0;i < 5;i++){
            for (int j = 0;j < 3;j++){
                Poker removePoker = pokers.remove(0);
                hand.get(j).add(removePoker);
            }
        }
        return hand;
    }
}
